Vocals on ATH-M50's either very quiet or block out actual music

I just bought a pair of ATH-M50's, and for some reason they did fine when listening to my MP3 player, but when I tried to use them on my laptop, there was some weirdness. On both Spotify and Youtube, the vocals either were so quiet behind the music that I could barely hear them, or played over the music so that I could barely hear the music. Why would that happen? Thanks!

For some reason if I don't plug in the headphones all the way it works. If I leave a couple millimeters outside of the jack, they work perfectly. Why would that be?

possibly a faulty/damaged audio port since you didn't have that problem with the mp3 player. i suggest trying other laptops or whatever to make sure. if it is faulty then you can just get a usb dac or an external sound card. or if you don't mind leaving it like then it's whateverEdited by bobby12 - 8/8/14 at 9:06pm